Olshanskyite Mineral Data

Olshanskyite Mineral Data
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General Olshanskyite Information

Help on Chemical Formula: Chemical Formula: Ca2[B3O3(OH)6]OH•3(H2O)
Help on Composition: Composition: Molecular Weight = 333.68 gm
   Calcium   24.02 %  Ca   33.61 % CaO
   Boron      9.72 %  B    31.30 % B2O3
   Hydrogen   3.93 %  H    35.09 % H2O
   Oxygen    62.33 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2B3O3(OH)7•3(H2O)
Help on Environment: Environment: Skarn.
Help on IMA Status: IMA Status: Approved IMA 1969
Help on Locality: Locality: Eastern Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Yakov I. Olshansky (1912-1958), Russian geochemist.
Help on Name Pronunciation: Name Pronunciation: Olshanskyite + Pronunciation Say OLSHANSKYITE
 

Olshanskyite Image

Click Here for Larger Olshanskyite Image in a New Browser Window Images:
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Olshanskyite   Henmilite

Comments: Milky white olshanskyite hosting crystals of deep blue henmilite to 6 mm across.
Location: Fuka Mine, Bicchu Town, Kawakama Co., Okayama Pref., Japan. Scale: Crystal size 6 mm.
© John Veevaert

Olshanskyite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8055:1:0.7456
Help on Cell Dimensions: Cell Dimensions: a = 7.953, b = 9.873, c = 7.362, Z = 2; alpha = 111°, beta = 94.65°, gamma = 107.53° V = 512.91 Den(Calc)= 2.16
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.81(1), 3.05(0.8), 7.61(0.5),
Click Here for Large Olshanskyite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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Callegari A , Mazzi F , Tadini C , The Canadian Mineralogist , 39 (2001) p.137-144, The crystal structure of olshanskyite

 

Physical Properties of Olshanskyite

Help on Color: Color: Colorless, White, Light brown.
Help on Density: Density: 2.19 - 2.23, Average = 2.21
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Olshanskyite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.001 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2568,KPDmeas= 0.2557,KC= 0.2572
Ncalc = 1.56 - 1.57
Help on Optical Data: Optical Data: Biaxial (-), a=1.557, b=1.568, g=1.57, bire=0.0130, 2V(Calc)=44, 2V(Meas)=54. Dispersion weak, r > v.
 

Calculated Properties of Olshanskyite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.27 gm/cc
note: Specific Gravity of Olshanskyite =2.20 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEOlshanskyite = 3.08 barns/electron
U=PEOlshanskyite x rElectron Density= 6.99 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Olshanskyite is Not Radioactive
 

Olshanskyite Classification
Help on Dana Class: Dana Class: 25.01.06.01 (25)Anhydrous Borates Containing Hydroxyl or Halogen
  (25.01)Dana Type
  (25.01.06)Dana Group
 
25.01.06.01 Olshanskyite Ca2[B3O3(OH)6]OH•3(H2O) P1 1
Help on Strunz Class: Strunz Class: 06.CA.55 06 - BORATES
  06.C - Triborates
  06.CA -Neso-triborates
 
06.CA.55 Olshanskyite Ca2[B3O3(OH)6]OH•3(H2O) P1 1
 

Other Olshanskyite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8, AmMin, Vol 86, p1115) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Olshanskyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Ask about Olshanskyite here :
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Print or Cut-and-Paste your Olshanskyite Specimen Label here :

Olshanskyite

Ca2[B3O3(OH)6]OH•3(H2O)
Dana No: 25.01.06.01 Strunz No: 06.CA.55
Locality:

 

Notes: